摘要
以河北省水-能源-粮食(WEF)系统作为切入点,基于系统水足迹模型和脱钩评价模型研究水资源利用与经济增长的脱钩态势,并对脱钩状态划分等级,最后通过扩展的LMDI模型把脱钩驱动因素分为5种脱钩因子,探讨脱钩因子对脱钩状态造成的影响。结果表明:在2011-2020年间,河北省水资源紧缺程度较高,水资源利用效率逐年提升;WEF系统下水资源利用与经济增长脱钩态势良好,能源子系统比粮食子系统的脱钩情况好;用水强度因子和耕地面积因子为负向脱钩因子,足迹结构因子、规模经济因子和人口耕地密度因子为正向脱钩因子。
The study is carried out from the perspective of the Water-Energy-Food(WEF) system in Hebei Province.Based on the system water footprint model and the decoupling evaluation model,this paper studies the decoupling situation of water resources utilization and economic growth and the decoupling state is classified into different grades.Finally,the decoupling is driven by the extended LMDI model and the factors are divided into five decoupling factors,then the influence of the decoupling factors on the decoupling state is discussed.The results show that:from 2011 to 2020,the degree of water resource shortage in Hebei Province was relatively high,and the efficiency of water resources utilization was improving year by year;the decoupling of water resources utilization and economic growth in the WEF system was good,and the decoupling of the Energy subsystem was better than that of the Food subsystem;The water intensity and cultivated land area factors are negative decoupling factors,and the footprint structure,scale economy and population cultivated land density factors are positive decoupling factors.
作者
王晶
刘天一
吴春莉
WANG Jing;LIU Tian-yi;WU Chun-li(School of Economics and Management,Yanshan University,Qinhuangdao 066000,Hebei Province,China)
出处
《节水灌溉》
北大核心
2022年第11期26-33,共8页
Water Saving Irrigation
基金
2022年度河北省社科基金项目“河北省水-能源-粮食系统耦合协调的动态演化与空间特征分析”(HB22GL061)。
